Auxiliary base and switch attachment for telephones



D 2. 1930. c. F. JQHANNING 1,183 936 AUXILIARY BASE AND SWITCH ATTACHMENT FOR TELEPHONES Filed ,Oct. 19. 1929 INVEN TOR. x7 05' 7575i)??? 5725 vBY I-i TTURN E Y.

along the line 3-3 of Figure 2, showing the.

Patented Dec. 2, 1930 n V UNITED STATES CARLOS r. eonemvnve, or nsnisomrnxes AUXILIARY BASE AND swircrr ATTACHMENT FOB. TELEIPHONES Application filed October 19, 1929. Serial No. 406,761.

This invention has for its object to provide a new and improved means for the mounting of a plurality of push buttons for use in an electrical circuit to signal persons .5 or departments in proximity to a telephone.

More particularly the invention consists of an auxiliary base to be used in connection with a standard telephone set, and including several push buttons, keys, or other means in for connecting the circuit of an electric. battery so that individuals remotefrom the tele-- phone may be summoned.

The invention also aimsto provide a'base of this character upon which the ordinary lligure3 is a sectional detail view, taken push buttons and wiring;,and

Figure 4 is a detall sectional view showing one of the push buttons and connecting parts.

1 denotes the ordinary base of a standard telephone'set, the post being broken away as indicated at 2; The invention comprises an auxiliary base 3 made of the samecharaoter of material as V the regular telephone base and being of circular shape except at the point directly in front of the dail 4:. At this point the auxblock.

iliary base is directed outwardly and formed therein is a recess L for the reception of the push buttons 5, mounted in the panel 6, see Figure 3. The panel 6 is secured to the auxiliary'base 3 by means ofscrews 7. Below the push buttons are numerals placed on the 59 insets 8, these numerals indicating-as will be "posts 13 support the contact bar fromthe Referring more in detail to the drawings,

to rest and be fastened, switching means in obvious various individuals or departments? to be signaled However, the push buttons may be dispensed with and other means employed to connect and control the circuit. j

Likewise the numerals may be dispensed withssss and other characters ornames substituted therefor. Also the arrangement is susceptible of other modifications such as substituting a gang push button with one common contact bar. l V t :51:60 Below the'panel 6 is a contact bar 9 and a spring 10 for returningthe button to normal positioncomm'on in use. Obviously when the button is depressed the circuit is completed through the spring and contactbar and the currentcarried along the wires 11 to the battery. The contact bar is properly insulated by the material 12, and the panel 6. a A 7 0 Vhat is claimed as new is. i 1. The combination of a desk telephone" having a base, an auxiliary base adapted to receive said telephone base and means on said auxiliary base for controlling electrical cir-a; cuits.

' 2. The combination of a desk telephone having a base, an auxiliary base adapted to receive said telephone base, and means on said auxiliary base for controlling electricalsgso circuits independent of said telephone.

3. The combination of' a desk telephone having a base, an auxiliary base comprising a block upon which said base is adapted to rest and switching means in said block fort! controlling electrical circuits.

4.'The combination of a desk telephone having a base, an auxiliary base comprising a hollow blockon which said base is adapted said block for controlling electrical circuits and identification means for said switching means mounted adjacent thereto on said' 5. The combination of a desk telephonei enssute 6. The combination of a desk telephone having a base, an auxiliary base and support adapted to receive said telephone base, said auxiliary base being hollow at least in the part extending in front of the telephone and electrical switches mounted on said part and extending into said hollow part.

In testimony whereof'l aifix my signature.

CARLOS F. J OHANN IN G. 

